---
name: "nvme-log-effects"
section: "1"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme-log-effects"
---

# nvme-log-effects(1)

Send NVMe Command Effects log page request, returns result and log

## NAME

nvme-log-effects - Send NVMe Command Effects log page request, returns result and log

## SYNOPSIS

```
nvme [<global-options>] log effects <device> [--raw-binary | -b]
```

## DESCRIPTION

Retrieves the NVMe Command Effects log page from an NVMe device and provides the returned structure.

The \<device\> parameter is mandatory and should be the NVMe character device (ex: /dev/nvme0).

On success, the returned command effects log structure will be printed for each command that is supported.

## OPTIONS

- \-b, --raw-binary

  This option will print the raw buffer to stdout. Structure is not parsed by program. This overrides the verbose option.

## GLOBAL OPTIONS

The following options are defined at the top-level nvme command and are available to this subcommand:

- \--dry-run

  Print the command that would be executed, but do not actually execute it.

- \--no-ioctl-probing

  Disable probing for 64-bit IOCTL support.

- \--no-retries

  Disable retry logic on transient errors.

- \-o \<fmt\>, --output-format=\<fmt\>

  Set the reporting format to *normal*, *tabular, 'json*, or *binary*. Only one output format may be used at a time.

- \--output-format-version=\<version\>

  Select the output format version. Version *1* uses the original field naming, while version *2* (default) provides more consistent and script-friendly field names. Other versions are rejected.

- \--quiet

  Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.

- \--set-options=\<key=value\>\[,\<key=value\>...\]

  Set libnvme library options for this invocation. Supported keys are *force-4k*, *mi-probe-enabled*, *test-base-dir* and *test-sysfs-dir*.

- \--timeout=\<ms\>

  Set the timeout for the command in milliseconds. *infinite* or *-1* waits without a time limit (0xffffffff).

- \-v, --verbose

  Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in [nvme-cli.conf(5)](/nvme-cli.conf/5.md). A command-line flag always overrides the file.

## EXAMPLES

• Print the effects log page in a human readable format:

```
# nvme log effects /dev/nvme0
```

• Have the program return the raw structure in binary:

```
# nvme log effects /dev/nvme0 --raw-binary > effects_log.raw
# nvme log effects /dev/nvme0 -b > effects_log.raw
```

## NVME

Part of the nvme-user suite